Which of these four sets of side lengths will form a right triangle?

F(n + 1) = f(n) – 8. if f(1) = 100, what is f(6)?

If sin(x) = 0 and cos(x) = 1, what is tan(x)?

What is 617.3 miles and each gallon of gas the car can travel 41 miles select a reasonable estimate of the number of gallons of gas karl used.